The Bureau of Alcohol, Tobacco, Firearms and Explosives, or ATF, established Project Gunrunner in 2006 to stem the flow of illegal weapons from the U.S. to Mexico. But a recent review reveals significant weaknesses with the program.

A federal agent on horse patrol in a remote area near the Nogales border Tuesday morning, shot a Mexican national in the abdomen. The Border Patrol has given no information saying that the case is under investigation by the FBI.

American colleges have grown more racially diverse in recent years, but minority students, especially Latinos, still lag behind in academic success. A look into Hispanic Serving Institutions and whether they're making higher education more accessible.

An estimated 80,000 farms in California and many more along the border rely on undocumented workers to keep labor costs down. But for many farm owners, the nation's current debate over immigration is the least of their concerns.

The Mexican army allowed reporters into the drug smuggling tunnel Thursday afternoon that connects a Tijuana warehouse with one in San Diego. The smugglers used a motorized cart to transport the drugs to San Diego. KPBS Border Reporter Amy Isackson got a ride.

U.S. and Mexican authorities have found a drug smuggling tunnel that runs from Tijuana to San Diego. It isn’t the most sophisticated or the longest tunnel discovered, but is significant for the amount of marijuana authorities seized.